Development of an experimental apparatus aimed at performing thermal-induced spalling tests based on a propane gas burner through tests on ultra-high performance concrete

被引：5
|
作者：
Ouedraogo, E. [1 ]
Djaknoun, S. [2 ]
Uch, B. [1 ]
Nguyen, Q. T. [1 ]
Missemer, L. [1 ]
Miras, A. [1 ]
Malecot, Y. [1 ]
机构：
[1] UGA, Grenoble INP, 3SR Lab, Grenoble, France
[2] USTHB, AML, Algiers, Algeria
来源：
CONSTRUCTION AND BUILDING MATERIALS | 2020年 / 247卷
关键词：
Spalling of concrete; Spalling tests; Temperature field; Debris analysis; Gas burner; ISO; 834; fire; HIGH-STRENGTH CONCRETE; HIGH-TEMPERATURE; HYGROTHERMAL BEHAVIOR; POLYPROPYLENE FIBERS; HEATED CONCRETE; PORE PRESSURE; FIRE; MODEL; DAMAGE; MECHANISMS;
D O I：
10.1016/j.conbuildmat.2020.118395
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
The modelling of thermal spalling of concrete structures is a challenging subject that requires relevant and reliable experimental data concerning temperature distribution and material degradations. For this purpose, a new device dedicated to the study of concrete thermal-induced spalling was designed and manufactured and is now under development. The experimental apparatus consists of a propane supplied burner surmounted by a furnace that can heat uniformly a concrete specimen surface according to ISO 834 standard fire curve. Temperature-time curves on the heated face and at different points of high performance concrete specimens that underwent spalling are reported and commented. The thermal conditions for which spalling and explosive spalling occurred are also examined and analyzed. An indicative thermal gradient value of about 14 degrees C/mm was found to be critical for the spalling occurrence. The analysis of the debris mass and dimensions distributions highlighted their usefulness in numerical modelling purpose. Lastly, the paper analyses how the undertaken tests results can ease the finite element modelling of spalling of concrete structures. (C) 2020 Elsevier Ltd. All rights reserved.
引用
收藏
页数：10
相关论文
共 6 条
  • [1] Analysis of thermal-induced spalling tests on high to ultra-high performance concrete subjected to standard fire
    Bensalem, Hadjira
    Djaknoun, Samira
    Ouedraogo, Evariste
    Amrouche, Ramdane
    [J]. CASE STUDIES IN CONSTRUCTION MATERIALS, 2021, 15
  • [2] Dynamic fracture investigations of ultra-high performance concrete by spalling tests
    Khosravani, Mohammad Reza
    Wagner, Peter
    Froehlich, Dirk
    Weinberg, Kerstin
    [J]. ENGINEERING STRUCTURES, 2019, 201
  • [3] EXPERIMENTAL TESTS PERFORMED ON CONCRETE COLUMNS WITH ULTRA-HIGH PERFORMANCE FIBRE REINFORCED CORES
    Popa, M.
    Constantinescu, H.
    Zagon, R.
    Kiss, Z.
    Bolca, Geanina
    [J]. JOURNAL OF APPLIED ENGINEERING SCIENCES, 2014, 4 (01): : 67 - 73
  • [4] Experimental Investigations on Temperature Generation and Release of Ultra-High Performance Concrete during Fatigue Tests
    Deutscher, Melchior
    Ngoc Linh Tran
    Scheerer, Silke
    [J]. APPLIED SCIENCES-BASEL, 2020, 10 (17):
  • [5] Explosion resistance of 3D printing ultra-high performance concrete based on contact explosion tests
    Ma, Guowei
    Bai, Gang
    Wang, Li
    Wang, Fang
    [J]. INTERNATIONAL JOURNAL OF IMPACT ENGINEERING, 2022, 169
  • [6] Ultra-high performance concrete beam-to-beam connections in continuous bridges: Experimental full-scale tests, FE analyses and design
    Contento, Alessandro
    Aloisio, Angelo
    Xue, Junqing
    He, Junping
    Briseghella, Bruno
    [J]. ENGINEERING STRUCTURES, 2024, 316
1